flutter/dev/tools/gen_defaults/lib/progress_indicator_template.dart
Pierre-Louis 66cda5917d
Improve defaults generation with logging, stats, and token validation (#128244)
## Description

This improves defaults generation with logging, stats, and token validation. 

This PR includes these changes:
* introduce `TokenLogger`, with a verbose mode
  * prints versions and tokens usage to the console
  * outputs `generated/used_tokens.csv`, a list of all used tokens, for use by Google
* find token files in `data` automatically
* hide tokens `Map`
  * tokens can be obtained using existing resolvers (e.g. `color`, `shape`), or directly through `getToken`.
  * tokens can be checked for existence with `tokenAvailable`
* remove version from template, since the tokens are aggregated and multiple versions are possible (as is the case currently), it does not make sense to attribute a single version
* improve documentation

## Related Issues
 - Fixes https://github.com/flutter/flutter/issues/122602

## Tests
 - Added tests for `TokenLogger`
 - Regenerated tokens, no-op except version removal

## Future work
A future PR should replace or remove the following invalid tokens usages

<img width="578" alt="image" src="https://github.com/flutter/flutter/assets/6655696/b6f9e5a7-523f-4f72-94f9-1b0bf4cc9f00">
2023-06-09 11:28:18 +00:00

41 lines
1.3 KiB
Dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'template.dart';
class ProgressIndicatorTemplate extends TokenTemplate {
const ProgressIndicatorTemplate(super.blockName, super.fileName, super.tokens, {
super.colorSchemePrefix = '_colors.',
});
@override
String generate() => '''
class _Circular${blockName}DefaultsM3 extends ProgressIndicatorThemeData {
_Circular${blockName}DefaultsM3(this.context);
final BuildContext context;
late final ColorScheme _colors = Theme.of(context).colorScheme;
@override
Color get color => ${componentColor('md.comp.circular-progress-indicator.active-indicator')};
}
class _Linear${blockName}DefaultsM3 extends ProgressIndicatorThemeData {
_Linear${blockName}DefaultsM3(this.context);
final BuildContext context;
late final ColorScheme _colors = Theme.of(context).colorScheme;
@override
Color get color => ${componentColor('md.comp.linear-progress-indicator.active-indicator')};
@override
Color get linearTrackColor => ${componentColor('md.comp.linear-progress-indicator.track')};
@override
double get linearMinHeight => ${getToken('md.comp.linear-progress-indicator.track.height')};
}
''';
}